Unbreakable
Shieldvow tree, row 5, a capstone
In the tree
- Tree
- Shieldvow
- Who
- Paladin
- Costs
- 5 level points
- Spent first
- 4 ranks in the tree's earlier rows
- After
Aegis- Opens
Warden 
Bedrock Vow- Changed by
- Bedrock Vow
Runes that change it
A rune socketed in the weapon changes every ability its wearer casts:
Rune of Fury: +10 Power
Rune of the Arc: Sweeping abilities reach 20° wider
Rune of Binding: +10 Debuff length
Rune of Fervour: +40 Buff length
Rune of Haste: +11 Haste
Rune of Thrift: +25 Breath Efficiency
Rune of Might: +15 Might potency
Rune of Ages: +18 Haste